:root {
    /*--primary-color: #2563eb;*/
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
}
.container1 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}



/* 搜索框样式 */
.search-container {
    position: relative;
    width: 250px;
    margin-right: 20px;
    margin-left: 20px;
}

.search-input {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light-text);
}
/* Banner样式 */
.banner {
    /*height: 300px;*/
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    padding-top:  80px;
    padding-bottom: 30px;
}

.banner-content {
    text-align: center;
    z-index: 10;
    padding: 0 1rem;
}

.banner h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.banner p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjA1KSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3QgZmlsbD0idXJsKCNwYXR0ZXJuKSIgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIvPjwvc3ZnPg==');
}

/* 二级导航 */
.secondary-nav {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    padding-left: 20px;
}

.secondary-nav-container {
    display: flex;
    align-items: center;
    overflow-x: auto;
    justify-content: space-between;
    padding: 0.75rem 0;
    scrollbar-width: none;
}

.secondary-nav-items {
    display: flex;
    gap: 1.5rem;
}

.secondary-nav-item {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--light-text);
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.2s ease;
    white-space: nowrap;
}

.secondary-nav-item:hover {
    color: var(--primary-color);
}

.secondary-nav-item.active  {
    color: var(--primary-color);
}

.secondary-nav-item.active::after  {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--light-text);
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item a {
    color: var(--light-text);
    transition: color 0.2s ease;
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
}

.breadcrumb-separator {
    margin: 0 0.25rem;
    color: var(--light-text);
}

/* 文章列表 */
.article-list {
    display: grid;
    gap: 1.5rem;
}

.article-card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.article-content {
    padding: 1.5rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--light-text);
}

.article-category {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.article-excerpt {
    color: var(--light-text);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--light-text);
}

.article-read-more {
    color: var(--primary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s ease;
}

.article-read-more:hover {
    color: var(--secondary-color);
}

.article-read-more i {
    transition: transform 0.2s ease;
}

.article-read-more:hover i {
    transform: translateX(2px);
}


.pagination{
    width: 100%;
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    color: #555;
}
.pagination li{
    display: inline-block;
    margin: 0 4px;
}
.pagination li a{
    display: block;
    padding: 6px 13px;
    border: 1px solid #eee;
    border-radius: 2px;
    transition: all .3s ease;
}
.pagination li a:hover,
.pagination li.on a{
    background: var(--primary-color);
    color: #fff;
}